Wear behaviour of TiAlN coated solid carbide end-mill under alumina enriched minimum quantity palm oil-based lubricating condition. (August 2020)

• Record Type: Journal Article
• Authors: Sen, Binayak; Gupta, Munish Kumar; Mia, Mozammel; Mandal, Uttam Kumar; Mondal, Sankar Prasad
• Is Part Of: Tribology international. Volume 148(2020)
• Publication Date: 2020-08
• Subjects: Inconel 690 -- Nano-green lubricant -- Tool wear -- Surface protecting film; Tribology -- Periodicals; 621.89
• DOI: 10.1016/j.triboint.2020.106310
• Languages: English
• ISSNs: 0301-679X

Abstract

Abstract: The lubricating effect of alumina deposited palm oil was investigated during the end-milling of Inconel 690. Different volume concentration (0.3–1.5%) of alumina was reinforced into palm oil, and experimentally optimized concentration of alumina was selected. Later on, the milling experiments were carried out in Flooded, MQL with palm oil (MPO) and MQL with 0.9% alumina enhanced palm oil (0.9%-MAPO) medium, which confirmed that 0.9%-MAPO reduced the tool wear by 19.35%, and 10.71% respectively as compared to flooded and MPO medium. SEM and EDX analysis demonstrated that adhesion and abrasion were the principal tool wear mechanism in all lubricating environments. Further analysis confirmed that 0.9%-MAPO medium effectively formed a surface protecting film on the machined surface. Highlights: Effect of alumina reinforced palm oil on the tool wear is evaluated. Wear mechanism of TiAlN coated carbide end mill is investigated. Wear and surfaces were characterized using SEM micrograph. Surface protecting layers on the machined surfaces are examined.